81268980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3361}}^1$

素因数の和:3417

約数の個数: 96

約数和(自身を含む): 253037568

約数和(自身を除く): 171768588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 930, 1209, 1612, 1860, 2015, 2418, 3361, 4030, 4836, 6045, 6722, 8060, 10083, 12090, 13444, 16805, 20166, 24180, 33610, 40332, 43693, 50415, 67220, 87386, 100830, 104191, 131079, 174772, 201660, 208382, 218465, 262158, 312573, 416764, 436930, 520955, 524316, 625146, 655395, 873860, 1041910, 1250292, 1310790, 1354483, 1562865, 2083820, 2621580, 2708966, 3125730, 4063449, 5417932, 6251460, 6772415, 8126898, 13544830, 16253796, 20317245, 27089660, 40634490, 81268980]

約数ペア:

[(1, 81268980), (2, 40634490), (3, 27089660), (4, 20317245), (5, 16253796), (6, 13544830), (10, 8126898), (12, 6772415), (13, 6251460), (15, 5417932), (20, 4063449), (26, 3125730), (30, 2708966), (31, 2621580), (39, 2083820), (52, 1562865), (60, 1354483), (62, 1310790), (65, 1250292), (78, 1041910), (93, 873860), (124, 655395), (130, 625146), (155, 524316), (156, 520955), (186, 436930), (195, 416764), (260, 312573), (310, 262158), (372, 218465), (390, 208382), (403, 201660), (465, 174772), (620, 131079), (780, 104191), (806, 100830), (930, 87386), (1209, 67220), (1612, 50415), (1860, 43693), (2015, 40332), (2418, 33610), (3361, 24180), (4030, 20166), (4836, 16805), (6045, 13444), (6722, 12090), (8060, 10083)]